Journal
JOURNAL OF BIOMATERIALS APPLICATIONS
Volume 32, Issue 7, Pages 896-905Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0885328217748124
Keywords
Egg shell; hydroxyapatite; strontium; cations; bioactivity
Funding
- National Natural Science Foundation of China [31370970, 31570970]
- Tianjin Research Program of Application Foundation and Advanced Technology [14JCZDJC38500]
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The fabrication and application of bioactive hydroxyapatite has always been a research hot spot in the fields of orthopaedics. Now it is common to use calcium (Ca) salt as Ca2+ source to synthesise hydroxyapatite. And egg shell could be another promising raw material as Ca2+ source, which is not only economical but also biogenic. In this study, egg shell (ES)-hydroxyapatite was prepared by using egg shells via hydrothermal method. Furthermore, ES-Sr hydroxyapatite was synthesized by incorporation of bioactive element strontium (Sr2+) into ES-hydroxyapatite. The invitro experiment showed that compared with hydroxyapatite, ES-hydroxyapatite showed better biological performances, which could be attributed to the trace elements in egg shell, such as magnesium (Mg). And the incorporation of Sr2+ could further enhance the bioactivity. These results indicated that apatite with high biological activity, which had great application prospects in orthopedics, could be produced by egg shells and the incorporation of Sr2+.
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